class_docstr: Base object for the node of a tree. 
code: def __eq__(self, other):
      return other.upp_bound == self.upp_bound
  
imports: from __future__ import division
  from functools import total_ordering
  from argparse import Namespace
  import numpy
  from .general_utils import map_to_bounds
label_desc: Use image node_id 4 for calling the Node obj's underlying member method code with example usage: obj.__eq__(other) and returns: unknown